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  1. Technical
  2. Hooks Functions
  3. Float

float_compare

Perform a comparison on two XFL floating point numbers

Last updated 2 months ago

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Concepts

Behaviour

  • Evaluate a comparison of two XFL floating point numbers

  • Return the result of the comparison as a boolean encoded in an int64_t.

  • Evaluate a comparison of two XFL floating point numbers

  • Returns an error code or the comparison result as a number.

Definition

int64_t float_compare (
    int64_t float1,
    int64_t float2,
    uint32_t mode
);
function float_compare(
    f1: bigint,
    f2: bigint,
    mode: number
  ): ErrorCode | number

Example

if (float_compare(pusd_to_send, 0, COMPARE_LESS) == 1)
{
  // pusd_to_send is less than 0
}

if (float_compare(pusd_to_send, 0n, COMPARE_LESS) == 1)
{
  // pusd_to_send is less than 0
}

Parameters

Name
Type
Description

float1

int64_t

An XFL floating point enclosing number representing the first operand to the comparison

float2

int64_t

An XFL floating point enclosing number representing the second operand to the comparison

mode

uint32_t

A bit-flag field consisting of any of (or any logically valid combination of) the following flags: COMPARE_LESS COMPARE_EQUAL COMPARE_GREATER Valid combinations are: COMPARE_LESS | COMPARE_GREATER - Not equal COMPARE_LESS | COMPARE_EQUAL - Less than or equal to COMPARE_GREATER | COMPARE_EQUAL - Greater than or equal to

🚧Caution

Always verify the function returned 1 rather than non-zero, as negative error codes will be classed as non-zero.

Name
Type
Description

f1

bigint

The first float to compare.

f2

bigint

The second float to compare.

mode

number

The comparison mode (e.g., less than, equal to, greater than).

Return Code

Type
Description

int64_t

0 if the comparison was logically false. 1 if the comparison was logically true. If negative, an error: INVALID_FLOAT - one of the supplied parameters was not a valid XFL enclosing number INVALID_ARGUMENT - invalid combination of supplied comparison flags.

Type
Description

ErrorCode or number

Returns an error code or the comparison result as a number.

📐
Floating Point Numbers (XFL)